CN204162242U - A kind of hydraulic elevator - Google Patents
A kind of hydraulic elevator Download PDFInfo
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- CN204162242U CN204162242U CN201420567956.5U CN201420567956U CN204162242U CN 204162242 U CN204162242 U CN 204162242U CN 201420567956 U CN201420567956 U CN 201420567956U CN 204162242 U CN204162242 U CN 204162242U
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Abstract
The utility model discloses a kind of hydraulic elevator, comprise cab, fixed pulley, hydraulic ram, the first rope, first rope is around on fixed pulley, first rope is connected between cab and hydraulic ram, hydraulic ram is vertically installed, hydraulic ram drives cab lifting by traction first rope, and the piston weight of hydraulic ram is greater than cab weight and load weight sum.Hydraulic elevator disclosed in the utility model, energy-saving and emission-reduction, the up process of hydraulic elevator does not consume energy, and hydraulic elevator is descending manned more, consumes energy fewer.
Description
Technical field
The utility model relates to mechanical field, particularly a kind of hydraulic elevator.
Background technology
Elevator comprises hydraulic elevator and traction elevator, and traction elevator is that comprise towing machine, control housing, car, towing machine and control housing are arranged on hoistway top according to driven by power, and towing machine drives car lifting.Hydraulic elevator mainly contains two kinds of forms, direct drive and indirect drive.Direct drive hydraulic elevator is connected with cage bottom by oil cylinder, utilizes hydraulic ram telescopic drive car up-and-down movement.Indirect drive hydraulic elevator is connected to by hydraulic ram on a movable pulley, and the rope be connected on car is first up walked around the fixed pulley being fixed on hoistway top, more down walked around the movable pulley on hydraulic ram, is finally fixed on hoistway top.In hydraulic ram telescopic process, the kinematic velocity of car and distance are the twices of movable pulley on piston rod.Hydraulic elevator is due to hydraulic ram length limited, and the hydraulic ram manufacturing up to a hundred meters is very difficult, even if having created installation is also a difficult problem, therefore can only be used for low-rise building; Generally do not arrange clump weight, can not be energy-conservation; Direct drive hydraulic elevator also needs to dig melt pit to place hydraulic ram.Therefore, elevator market hydraulic elevator is almost replaced by towed elevator completely, and hydraulic elevator is only used in only a few heavy duty low layer occasion.
Utility model content
In view of this, the utility model proposes a kind of hydraulic elevator, to solve the energy-conservation problem of hydraulic elevator.
On the one hand, the utility model provides a kind of hydraulic elevator, comprise cab, fixed pulley, hydraulic ram, the first rope, first rope is around on fixed pulley, first rope is connected between cab and hydraulic ram, hydraulic ram is vertically installed, and hydraulic ram drives cab lifting by traction first rope, and the piston weight of hydraulic ram is greater than cab weight and load weight sum.
Further, first rope one end is fixed in cab, and the other end is fixedly connected with piston.
Further, also comprise movable pulley, the first rope other end is fixed, and the first rope is around on fixed pulley and movable pulley, the piston rod of hydraulic ram is fixedly connected with movable pulley, and it is long-pending that the piston weight of hydraulic ram is greater than cab weight and load weight sum and movable pulley number.
Further, also comprise connection cord and movable pulley, the first rope other end is fixed, first rope is around on fixed pulley and movable pulley, on the piston of connection cord one end fixed hydraulic oil cylinder, the other end is fixedly connected with movable pulley, and it is long-pending that the piston weight of hydraulic ram is greater than cab weight and load weight sum and movable pulley number.
Further, hydraulic ram comprises at least two, and the piston weight of described hydraulic ram is the piston total weight of all hydraulic oil cylinder.
Still further provides a kind of hydraulic elevator, comprise cab, fixed pulley, hydraulic ram, the first rope, the second rope, clump weight; First rope and the second rope are around on fixed pulley, and the first rope is connected between cab and hydraulic ram, and the second rope is connected between cab and clump weight; Hydraulic ram is vertically installed, and hydraulic ram and clump weight drive cab lifting respectively by the first rope and the second rope; Piston weight and the clump weight weight sum of hydraulic ram are greater than cab weight and load weight sum, and clump weight weight is less than cab weight.
Further, the first rope and second rope one end are fixed in cab, and the first rope other end is fixedly connected with piston, and the second rope other end is fixedly connected with clump weight.
Further, also comprise movable pulley, first rope and the second rope other end are fixed, first rope and the second rope are around on fixed pulley and movable pulley, the piston rod of hydraulic ram is fixedly connected with movable pulley with clump weight, and it is long-pending that the piston weight of hydraulic ram and clump weight weight sum are greater than cab weight and load weight sum and movable pulley number.
Further, also comprise at least two connection cords and movable pulley, first rope and the second rope other end are fixed, first rope and the second rope are around on fixed pulley and movable pulley, on the piston of connection cord one end fixed hydraulic oil cylinder, on another root connection cord one end fixed weight block, the connection cord other end is fixedly connected with movable pulley, and it is long-pending that the piston weight of hydraulic ram and clump weight weight sum are greater than cab weight and load weight sum and movable pulley number.
Further, clump weight comprises at least two, and described clump weight weight is all clump weight weight sums.。
The hydraulic elevator that the utility model provides, because the weight of piston is greater than cab weight and load weight sum, cab rises under the Action of Gravity Field of piston, hydraulic ram drives cab to rise not to be needed to provide pressure oil to hydraulic ram, save energy, only need the lower chamber recirculating oil quantity of hydraulic control oil cylinder, just can control cab ascending velocity.Generally in the oil return line of rodless cavity, be provided with by pass valve, the aperture of controlling water kick valve just can the recirculating oil quantity of hydraulic control oil cylinder and oil return speed.When cab rises in process lower, because the weight of piston is greater than cab weight and load weight sum, under not providing hydraulic pressure oil condition to hydraulic ram, cab cannot be descending, ensure that cab whereabouts safety performance, that is hydraulic efficiency pressure system is damaged, and also can guarantee hydraulic elevator safety.Only have the rodless cavity to hydraulic ram to provide hydraulic oil, cab could be descending.If the people in cab and thing more, cab load carrying ability is larger, and the hydraulic fluid pressure be supplied in hydraulic ram is lower, hydraulic elevator power consumption fewer.Thus achieve the effect of energy-saving and emission-reduction.
In order to improve cab uplink and downlink speed, reduce the length of hydraulic ram, adopt a movable pulley, the kinematic velocity of car and distance are the twices of piston movement speed and distance, adopt two movable pulleys, the kinematic velocity of car and distance are four times of piston movement speed and distance, and adopt three movable pulleys, the kinematic velocity of car and distance are the octuple of piston movement speed and distance.In order to reduce the length of hydraulic ram further, hydraulic ram adopts single-action hydrocylinder, first rope is directly connected with piston, this hydraulic ram does not have piston rod, and the oil inlet and outlet of hydraulic ram is same hydraulic fluid port, simplifies hydraulic ram, this hydraulic elevator can realize high-rise occasion, hydraulic elevator does not need to dig deep hole installation hydraulic ram simultaneously, easy for installation, saves man power and material.
In order to alleviate the weight of piston, be also provided with clump weight, piston and all clump weight weight sums of hydraulic ram are greater than cab weight and load weight sum, and clump weight is heavily less than cab weight.Cab rises under the Action of Gravity Field of piston and clump weight.If when cab is unloaded, because clump weight is less than cab weight, in hydraulic ram not oil return situation, cab can not rise voluntarily.If clump weight is greater than cab weight, rises voluntarily when cab can be made so unloaded, cause safety misadventure.In addition, adopt multiple hydraulic ram, make the piston weight sum of all hydraulic oil cylinder be greater than cab weight and load weight sum.
Cab weight of the present utility model refers to cab own wt, does not comprise the weight of cargo and people.Load weight refers to cab lade and people's weight sum.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the hydraulic elevator structural representation of the utility model first embodiment;
Fig. 2 is the hydraulic elevator structural representation of the utility model second embodiment;
Fig. 3 is the hydraulic elevator structural representation of the utility model the 3rd embodiment;
Fig. 4 is the birds-eye view of Fig. 3;
Fig. 5 is the hydraulic elevator structural representation of the utility model the 4th embodiment;
Fig. 6 be Fig. 5 birds-eye view;
Fig. 7 is the hydraulic elevator structural representation of the utility model the 5th embodiment;
Fig. 8 is the birds-eye view of Fig. 7.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Cab 2 weight described in the utility model refers to that cab 2 is conducted oneself with dignity, and load weight refers to cab 2 lade and people's weight sum.
The weight of piston 3 described in the utility model refers to the weight of piston component, if piston 3 has piston rod, the weight of piston 3 comprises piston and piston rod weight, if piston 3 does not have piston rod, the weight of piston is exactly piston weight.
As shown in Figure 1, the hydraulic elevator of preferred the first embodiment of this utility model, comprise cab 2, fixed pulley, hydraulic ram 1, first rope 6, hydraulic efficiency pressure system 7, fixed pulley comprises and is positioned at cab 2 side first fixed pulley 4 and is positioned at hydraulic ram 1 side second fixed pulley 5, first fixed pulley 4 and the second fixed pulley 5 is fixed on hoistway top.First rope 6 one end is fixed on the top of cab 2, and walk around the first fixed pulley 4 and the second fixed pulley 5 successively, the other end of last first rope 6 is fixed on the piston 3 of hydraulic ram.Piston 3 weight is greater than cab 2 weight and load weight sum.Hydraulic ram 1 is single acting oil cylinder, and the first rope 6 is directly connected with piston 3, and this hydraulic ram 1 does not have piston rod.But hydraulic ram 1 also can adopt piston rod in addition, the first rope 6 is directly connected with piston rod.The oil circuit that hydraulic ram 1 is connected can be that oil-feed and oil return share an oil circuit, also oil-feed and oil return can be divided into two, hydraulic efficiency pressure system 7 provides hydraulic oil to hydraulic ram 1, simplify hydraulic ram 1 structure, this hydraulic elevator can realize high-rise occasion simultaneously, hydraulic elevator does not need to dig deep hole and installs hydraulic ram 1, easy for installation, saves man power and material.Decrease the length of hydraulic ram 1.First rope 6 can be synthesis steel band, steel rope or other material rope.
If if car load weight is F, car deadweight is G, and piston 3 weight is K, then have:
K>F+G, meanwhile, the gravity of K-(F+G) is wanted to overcome rope and rub on fixed pulley resistance such as grade.Therefore, when hydraulic efficiency pressure system 7 is toward hydraulic ram 1 oil-feed, piston 3 rises, and car is descending under Gravitative Loads, is controlled car speed by hydraulic control oil cylinder 1 oil-feed speed, and as the upper and lower passenger of needs flat bed, close oil circuit, car stops.
If the people in cab 2 and thing more, he cab 2 load carrying ability is larger, and F is larger, needs the thrust of hydraulic ram 1 will be fewer, thus the hydraulic fluid pressure that hydraulic efficiency pressure system 7 is supplied to hydraulic ram 1 will be lower, and hydraulic elevator power consumption is fewer.Thus achieve the effect of energy-saving and emission-reduction.
Under not providing hydraulic pressure oil condition to hydraulic ram 1, cab 2 cannot be descending, and ensure that cab 2 falls safety performance, that is hydraulic efficiency pressure system 7 is damaged, and also can guarantee hydraulic elevator safety.Only have the rodless cavity to hydraulic ram 1 to provide hydraulic oil, cab 2 could be descending.
When hydraulic efficiency pressure system 7 fuel feeding stops, oil return line UNICOM, hydraulic ram 1 is by oil return under gravity, and piston 3 is descending, and car is up, controls car speed by hydraulic control oil cylinder 1 oil return speed.Close oil circuit, piston 3 is also by stopping decline, and the upper and lower passenger so that car stops, because hydraulic oil is incompressible, once oil circuit is closed, car, by stopping at once, can not produce the situations such as slippage, convenient control.By controlling car acceleration-deceleration to the control of oil circuit closing process, good traveling comfort can be obtained simultaneously.Cab 2 is in up process, and hydraulic ram 1 is in the process of oil return, does not need to provide energy, thus achieves energy-saving and emission-reduction.
As shown in Figure 2, in order to improve cab 2 uplink and downlink speed, reduce the length of hydraulic ram 1, the hydraulic elevator of the second embodiment of the present utility model, the hydraulic elevator of the second embodiment is different from the hydraulic elevator of the first embodiment to be, add movable pulley 8, first rope 6 other end around on the first fixed pulley 4 and the second fixed pulley 5 and movable pulley 8, is then fixed on hoistway top by the first rope 6 successively.The piston rod of hydraulic ram 1 is fixedly connected with movable pulley 8.Also can adopt on the piston 3 of connection cord 9 one end fixed hydraulic oil cylinder, the other end is fixedly connected with movable pulley 8.
If adopt a movable pulley 8, the kinematic velocity of car and distance are the twices of piston 3 kinematic velocity and distance, and piston 3 total weight K is greater than the twice of cab 2 weight and load weight sum F+G.Adopt two movable pulleys 8, the kinematic velocity of car and distance are four times of piston 3 kinematic velocity and distance, and piston 3 total weight K is greater than four times of cab 2 weight and load weight sum F+G.Adopt three movable pulleys 8, the kinematic velocity of car and distance are the octuple of piston 3 kinematic velocity and distance.Piston 3 total weight K is greater than the octuple of cab 2 weight and load weight sum F+G.Therefore, greatly reduce the object of hydraulic ram 1 length, but time increase piston 3 total weight K.
As shown in Figure 3 and Figure 4, the hydraulic elevator of the 3rd embodiment of the present utility model, the hydraulic elevator of the 3rd embodiment is different from the hydraulic elevator of the first embodiment to be, have employed multiple hydraulic ram 1.
If the car of hydraulic elevator and load weight sum F+G are at 2 to 3 tons, and make its volume of the so large piston of weight 3 also can be larger.In order to reduce single piston 3 weight, adopting multiple hydraulic ram 1, making piston 3 total weight of all hydraulic oil cylinder be greater than cab 2 weight and load weight sum.As shown in Figure 3 and Figure 4, adopt 5 hydraulic rams 1, each piston 3 weight is 1/5th of car Maximum Loading Capacity F+G.Thus alleviating single piston 3 weight, hydraulic ram 1 is easily manufactured.Each hydraulic ram 1 is connected in parallel in same hydraulic efficiency pressure system 7, guarantees that the hydraulic oil flow velocity entering each hydraulic ram 1 is all consistent with flow.
As shown in Figure 5 and Figure 6, the hydraulic elevator of the 4th embodiment of the present utility model, the hydraulic elevator of the 4th embodiment is different from the hydraulic elevator of the 3rd embodiment to be, have employed multiple fixed pulley, a fixed pulley prepared by each rope, can prevent rope from mutually interfering like this.
If the car of hydraulic elevator and load weight sum F+G are at 2 to 3 tons, and make its volume of the so large piston of weight 3 also can be larger.In order to reduce single piston 3 weight, if adopt the scheme of the 3rd embodiment, adopt multiple hydraulic ram 1, cost is too high.In order to solve the problem, as shown in Figure 7 and Figure 8, the hydraulic elevator of the 5th embodiment of the present utility model,
The hydraulic elevator of the 5th embodiment is different from the hydraulic elevator of the first embodiment to be, add clump weight 10 and the second rope 11, clump weight 10 also runs along guide rail.First rope 6 can be synthesis steel band, steel rope or other material rope.First rope 6 and the second rope 11 are around on fixed pulley, and the first rope 6 and second rope 11 one end are fixed in cab 2; Hydraulic ram 1 and clump weight 10 are elevated for driving cab 2; First rope 6 other end is fixedly connected with piston 3, and second rope 11 other end is fixedly connected with clump weight 10.Piston 3 weight and the clump weight 10 weight sum of hydraulic ram are greater than cab 2 weight and load weight sum, and cab 2 weight is greater than clump weight 10 weight.Piston 3 weight is slightly larger than load weight.Suppose, weight mass is D, and piston 3 quality is K, and car deadweight is G, and car load weight is F.Then have, D+K>G+F, should meet D<G simultaneously, piston 3 weight K>F is just passable.If when cab 2 is unloaded, because clump weight 10 is less than cab 2 weight, in hydraulic ram 1 not oil return situation, cab 2 can not rise voluntarily.Suppose that clump weight 10 is greater than cab 2 weight, rise voluntarily when cab 2 can be made so unloaded, hydraulic ram 1 is uncontrollable, causes safety misadventure.Thus piston 3 weight can be alleviated, hydraulic ram 1 is easily manufactured, low cost of manufacture.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a hydraulic elevator, it is characterized in that, comprise cab (2), fixed pulley (4,5), hydraulic ram (1), the first rope (6), first rope (6) is around on fixed pulley (4,5), first rope (6) is connected between cab (2) and hydraulic ram (1), hydraulic ram (1) is vertically installed, hydraulic ram (1) drives cab (2) lifting by traction first rope (6), and piston (3) weight of hydraulic ram is greater than cab (2) weight and load weight sum.
2. hydraulic elevator according to claim 1, is characterized in that, the first rope (6) one end is fixed in cab (2), and the other end is fixedly connected with piston (3).
3. hydraulic elevator according to claim 1, it is characterized in that, also comprise movable pulley (8), first rope (6) other end is fixed, first rope (6) is around on fixed pulley (4,5) and movable pulley (8), the piston rod of hydraulic ram (1) is fixedly connected with movable pulley (8), and it is long-pending that piston (3) weight of hydraulic ram is greater than cab (2) weight and load weight sum and movable pulley (8) number.
4. hydraulic elevator according to claim 1, it is characterized in that, also comprise connection cord (9) and movable pulley (8), first rope (6) other end is fixed, first rope (6) is around on fixed pulley (4,5) and movable pulley (8), on the piston (3) of connection cord (9) one end fixed hydraulic oil cylinder, the other end is fixedly connected with movable pulley (8), and it is long-pending that piston (3) weight of hydraulic ram is greater than cab (2) weight and load weight sum and movable pulley (8) number.
5. the hydraulic elevator according to Claims 1-4 any one, is characterized in that, hydraulic ram (1) comprises at least two, and piston (3) weight of described hydraulic ram is piston (3) total weight of all hydraulic oil cylinder.
6. a hydraulic elevator, is characterized in that, comprises cab (2), fixed pulley (4,5), hydraulic ram (1), the first rope (6), the second rope (11), clump weight (10); First rope (6) and the second rope (11) are around on fixed pulley (4,5), first rope (6) is connected between cab (2) and hydraulic ram (1), and the second rope (11) is connected between cab (2) and clump weight (10); Hydraulic ram (1) is vertically installed, and hydraulic ram (1) and clump weight (10) drive cab (2) lifting respectively by the first rope (6) and the second rope (11); Piston (3) weight and clump weight (10) the weight sum of hydraulic ram are greater than cab (2) weight and load weight sum, and clump weight (10) weight is less than cab (2) weight.
7. hydraulic elevator according to claim 6, it is characterized in that, one end of first rope (6) and the second rope (11) is fixed in cab (2), first rope (6) other end is fixedly connected with piston (3), and the second rope (11) other end is fixedly connected with clump weight (10).
8. hydraulic elevator according to claim 6, it is characterized in that, also comprise movable pulley (8), first rope (6) and the second rope (11) other end are fixed, first rope (6) and the second rope (11) are around fixed pulley (4, 5) and on movable pulley (8), the piston rod of hydraulic ram (1) is fixedly connected with movable pulley (8) with clump weight (10), it is long-pending that piston (3) weight of hydraulic ram and clump weight (10) weight sum are greater than cab (2) weight and load weight sum and movable pulley (8) number.
9. hydraulic elevator according to claim 6, it is characterized in that, also comprise at least two connection cords (9) and movable pulley (8), first rope (6) and the second rope (11) other end are fixed, first rope (6) and the second rope (11) are around fixed pulley (4, 5) and on movable pulley (8), on the piston (3) of connection cord (9) one end fixed hydraulic oil cylinder, on another root connection cord (9) one end fixed weight block (10), connection cord (9) other end is fixedly connected with movable pulley (8), it is long-pending that piston (3) weight of hydraulic ram and clump weight (10) weight sum are greater than cab (2) weight and load weight sum and movable pulley (8) number.
10. the hydraulic elevator according to claim 6 to 9 any one, is characterized in that, clump weight (10) comprises at least two, and described clump weight (10) weight is all clump weights (10) weight sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567956.5U CN204162242U (en) | 2014-09-29 | 2014-09-29 | A kind of hydraulic elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567956.5U CN204162242U (en) | 2014-09-29 | 2014-09-29 | A kind of hydraulic elevator |
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| CN204162242U true CN204162242U (en) | 2015-02-18 |
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| CN201420567956.5U Active CN204162242U (en) | 2014-09-29 | 2014-09-29 | A kind of hydraulic elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905765A (en) * | 2016-06-30 | 2016-08-31 | 爱默生电梯有限公司 | Traction system for elevator |
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2014
- 2014-09-29 CN CN201420567956.5U patent/CN204162242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905765A (en) * | 2016-06-30 | 2016-08-31 | 爱默生电梯有限公司 | Traction system for elevator |
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